diff --git a/ud/udMessages.pb.go b/ud/udMessages.pb.go
index 5004b047949f494c61bf8f3402d8894e9d050bf7..2e2bd66e6f220f12507ea9f9ff6e255974d89d67 100644
--- a/ud/udMessages.pb.go
+++ b/ud/udMessages.pb.go
@@ -8,8 +8,8 @@
 
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.23.0
-// 	protoc        v3.13.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        (unknown)
 // source: udMessages.proto
 
 package ud
@@ -96,8 +96,8 @@ type Contact struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	UserID    [][]byte    `protobuf:"bytes,1,rep,name=userID,proto3" json:"userID,omitempty"`
-	PubKey    [][]byte    `protobuf:"bytes,2,rep,name=pubKey,proto3" json:"pubKey,omitempty"`
+	UserID    []byte      `protobuf:"bytes,1,opt,name=userID,proto3" json:"userID,omitempty"`
+	PubKey    []byte      `protobuf:"bytes,2,opt,name=pubKey,proto3" json:"pubKey,omitempty"`
 	TrigFacts []*HashFact `protobuf:"bytes,3,rep,name=trigFacts,proto3" json:"trigFacts,omitempty"`
 }
 
@@ -133,14 +133,14 @@ func (*Contact) Descriptor() ([]byte, []int) {
 	return file_udMessages_proto_rawDescGZIP(), []int{1}
 }
 
-func (x *Contact) GetUserID() [][]byte {
+func (x *Contact) GetUserID() []byte {
 	if x != nil {
 		return x.UserID
 	}
 	return nil
 }
 
-func (x *Contact) GetPubKey() [][]byte {
+func (x *Contact) GetPubKey() []byte {
 	if x != nil {
 		return x.PubKey
 	}
@@ -163,7 +163,7 @@ type SearchSend struct {
 	// PublicKey used in the registration
 	Fact []*HashFact `protobuf:"bytes,1,rep,name=fact,proto3" json:"fact,omitempty"`
 	// ID of the session used to create this session
-	CommID int32 `protobuf:"varint,2,opt,name=commID,proto3" json:"commID,omitempty"`
+	CommID int64 `protobuf:"varint,2,opt,name=commID,proto3" json:"commID,omitempty"`
 }
 
 func (x *SearchSend) Reset() {
@@ -205,7 +205,7 @@ func (x *SearchSend) GetFact() []*HashFact {
 	return nil
 }
 
-func (x *SearchSend) GetCommID() int32 {
+func (x *SearchSend) GetCommID() int64 {
 	if x != nil {
 		return x.CommID
 	}
@@ -220,7 +220,7 @@ type SearchResponse struct {
 
 	// ID of the session created
 	Contacts []*Contact `protobuf:"bytes,1,rep,name=contacts,proto3" json:"contacts,omitempty"`
-	CommID   int32      `protobuf:"varint,2,opt,name=commID,proto3" json:"commID,omitempty"`
+	CommID   int64      `protobuf:"varint,2,opt,name=commID,proto3" json:"commID,omitempty"`
 }
 
 func (x *SearchResponse) Reset() {
@@ -262,7 +262,7 @@ func (x *SearchResponse) GetContacts() []*Contact {
 	return nil
 }
 
-func (x *SearchResponse) GetCommID() int32 {
+func (x *SearchResponse) GetCommID() int64 {
 	if x != nil {
 		return x.CommID
 	}
@@ -275,8 +275,8 @@ type LookupSend struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	UserID [][]byte `protobuf:"bytes,1,rep,name=userID,proto3" json:"userID,omitempty"`
-	CommID int32    `protobuf:"varint,2,opt,name=commID,proto3" json:"commID,omitempty"`
+	UserID []byte `protobuf:"bytes,1,opt,name=userID,proto3" json:"userID,omitempty"`
+	CommID int64  `protobuf:"varint,2,opt,name=commID,proto3" json:"commID,omitempty"`
 }
 
 func (x *LookupSend) Reset() {
@@ -311,14 +311,14 @@ func (*LookupSend) Descriptor() ([]byte, []int) {
 	return file_udMessages_proto_rawDescGZIP(), []int{4}
 }
 
-func (x *LookupSend) GetUserID() [][]byte {
+func (x *LookupSend) GetUserID() []byte {
 	if x != nil {
 		return x.UserID
 	}
 	return nil
 }
 
-func (x *LookupSend) GetCommID() int32 {
+func (x *LookupSend) GetCommID() int64 {
 	if x != nil {
 		return x.CommID
 	}
@@ -331,8 +331,8 @@ type LookupResponse struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	PubKey [][]byte `protobuf:"bytes,1,rep,name=pubKey,proto3" json:"pubKey,omitempty"`
-	CommID int32    `protobuf:"varint,2,opt,name=commID,proto3" json:"commID,omitempty"`
+	PubKey []byte `protobuf:"bytes,1,opt,name=pubKey,proto3" json:"pubKey,omitempty"`
+	CommID int64  `protobuf:"varint,2,opt,name=commID,proto3" json:"commID,omitempty"`
 }
 
 func (x *LookupResponse) Reset() {
@@ -367,14 +367,14 @@ func (*LookupResponse) Descriptor() ([]byte, []int) {
 	return file_udMessages_proto_rawDescGZIP(), []int{5}
 }
 
-func (x *LookupResponse) GetPubKey() [][]byte {
+func (x *LookupResponse) GetPubKey() []byte {
 	if x != nil {
 		return x.PubKey
 	}
 	return nil
 }
 
-func (x *LookupResponse) GetCommID() int32 {
+func (x *LookupResponse) GetCommID() int64 {
 	if x != nil {
 		return x.CommID
 	}
@@ -390,8 +390,8 @@ var file_udMessages_proto_rawDesc = []byte{
 	0x01, 0x28, 0x0c, 0x52, 0x04, 0x68, 0x61, 0x73, 0x68, 0x12, 0x12, 0x0a, 0x04, 0x74, 0x79, 0x70,
 	0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x05, 0x52, 0x04, 0x74, 0x79, 0x70, 0x65, 0x22, 0x68, 0x0a,
 	0x07, 0x43, 0x6f, 0x6e, 0x74, 0x61, 0x63, 0x74, 0x12, 0x16, 0x0a, 0x06, 0x75, 0x73, 0x65, 0x72,
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+	0x49, 0x44, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0c, 0x52, 0x06, 0x75, 0x73, 0x65, 0x72, 0x49, 0x44,
+	0x12, 0x16, 0x0a, 0x06, 0x70, 0x75, 0x62, 0x4b, 0x65, 0x79, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0c,
 	0x52, 0x06, 0x70, 0x75, 0x62, 0x4b, 0x65, 0x79, 0x12, 0x2d, 0x0a, 0x09, 0x74, 0x72, 0x69, 0x67,
 	0x46, 0x61, 0x63, 0x74, 0x73, 0x18, 0x03, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x0f, 0x2e, 0x70, 0x61,
 	0x72, 0x73, 0x65, 0x2e, 0x48, 0x61, 0x73, 0x68, 0x46, 0x61, 0x63, 0x74, 0x52, 0x09, 0x74, 0x72,
@@ -399,20 +399,20 @@ var file_udMessages_proto_rawDesc = []byte{
 	0x68, 0x53, 0x65, 0x6e, 0x64, 0x12, 0x23, 0x0a, 0x04, 0x66, 0x61, 0x63, 0x74, 0x18, 0x01, 0x20,
 	0x03, 0x28, 0x0b, 0x32, 0x0f, 0x2e, 0x70, 0x61, 0x72, 0x73, 0x65, 0x2e, 0x48, 0x61, 0x73, 0x68,
 	0x46, 0x61, 0x63, 0x74, 0x52, 0x04, 0x66, 0x61, 0x63, 0x74, 0x12, 0x16, 0x0a, 0x06, 0x63, 0x6f,
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+	0x6d, 0x6d, 0x49, 0x44, 0x18, 0x02, 0x20, 0x01, 0x28, 0x03, 0x52, 0x06, 0x63, 0x6f, 0x6d, 0x6d,
 	0x49, 0x44, 0x22, 0x54, 0x0a, 0x0e, 0x53, 0x65, 0x61, 0x72, 0x63, 0x68, 0x52, 0x65, 0x73, 0x70,
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 	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
diff --git a/ud/udMessages.proto b/ud/udMessages.proto
index 9cd441c1e7bf5e54cdc3583c1650a1732028b844..ce6877d22d93ee887cc1cec37c52e78e85cd006f 100644
--- a/ud/udMessages.proto
+++ b/ud/udMessages.proto
@@ -20,8 +20,8 @@ message HashFact {
 // Describes a user lookup result. The ID, public key, and the
 // facts inputted that brought up this user.
 message Contact {
-  repeated bytes userID = 1;
-  repeated bytes pubKey = 2;
+  bytes userID = 1;
+  bytes pubKey = 2;
   repeated HashFact trigFacts = 3;
 }
 
@@ -42,12 +42,12 @@ message SearchResponse {
 
 // Message sent to UDB for looking up a user
 message LookupSend {
-  repeated bytes userID = 1;
+  bytes userID = 1;
   int64 commID = 2;
 }
 
 // Message sent from UDB for looking up a user
 message LookupResponse {
-  repeated bytes pubKey = 1;
+  bytes pubKey = 1;
   int64 commID = 2;
 }
\ No newline at end of file